Determining whether a clusterNode is healthy is confusing #3522
Description
In clusterState.slotSlaveNode, we use !slave.Failing() && !slave.Loading() to determine whether a clusterNode is healthy. However, in clusterState.slotRandomNode and clusterState.slotClosestNode, we use !node.Failing() to determine whether a clusterNode is healthy.
Shouldn't they be consistent?